/*
 * Copyright 2017-present Open Networking Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.onosproject.store.primitives.impl;

import java.util.Collection;
import java.util.Objects;
import java.util.concurrent.CompletableFuture;
import java.util.function.Consumer;

import com.google.common.base.MoreObjects;
import org.onosproject.core.ApplicationId;
import org.onosproject.store.service.DistributedPrimitive;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Base class for primitive delegates.
 */
public abstract class DelegatingDistributedPrimitive implements DistributedPrimitive {
    private final DistributedPrimitive primitive;

    public DelegatingDistributedPrimitive(DistributedPrimitive primitive) {
        this.primitive = checkNotNull(primitive);
    }

    @Override
    public String name() {
        return primitive.name();
    }

    @Override
    public Type primitiveType() {
        return primitive.primitiveType();
    }

    @Override
    public ApplicationId applicationId() {
        return primitive.applicationId();
    }

    @Override
    public CompletableFuture<Void> destroy() {
        return primitive.destroy();
    }

    @Override
    public void addStatusChangeListener(Consumer<Status> listener) {
        primitive.addStatusChangeListener(listener);
    }

    @Override
    public void removeStatusChangeListener(Consumer<Status> listener) {
        primitive.removeStatusChangeListener(listener);
    }

    @Override
    public Collection<Consumer<Status>> statusChangeListeners() {
        return primitive.statusChangeListeners();
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(getClass())
                .add("delegate", primitive)
                .toString();
    }

    @Override
    public int hashCode() {
        return Objects.hash(primitive);
    }

    @Override
    public boolean equals(Object other) {
        return other instanceof DelegatingDistributedPrimitive
                && primitive.equals(((DelegatingDistributedPrimitive) other).primitive);
    }
}
